/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.dmetasoul.lakesoul.lakesoul.local.arrow.writers;
//
//import org.apache.arrow.vector.complex.MapVector;
//import org.apache.arrow.vector.complex.StructVector;
//import org.apache.flink.annotation.Internal;
//import org.apache.flink.table.data.ArrayData;
//import org.apache.flink.table.data.MapData;
//import org.apache.flink.table.data.RowData;
//import org.apache.flink.util.Preconditions;
//
///**
// * {@link ArrowFieldWriter} for Map.
// */
//@Internal
//public abstract class MapWriter<T> extends ArrowFieldWriter<T> {
//
//    public static MapWriter<RowData> forRow(
//            MapVector mapVector,
//            ArrowFieldWriter<ArrayData> keyWriter,
//            ArrowFieldWriter<ArrayData> valueWriter) {
//        return new MapWriterForRow(mapVector, keyWriter, valueWriter);
//    }
//
//    public static MapWriter<ArrayData> forArray(
//            MapVector mapVector,
//            ArrowFieldWriter<ArrayData> keyWriter,
//            ArrowFieldWriter<ArrayData> valueWriter) {
//        return new MapWriterForArray(mapVector, keyWriter, valueWriter);
//    }
//
//    // ------------------------------------------------------------------------------------------
//
//    private final ArrowFieldWriter<ArrayData> keyWriter;
//
//    private final ArrowFieldWriter<ArrayData> valueWriter;
//
//    private MapWriter(
//            MapVector mapVector,
//            ArrowFieldWriter<ArrayData> keyWriter,
//            ArrowFieldWriter<ArrayData> valueWriter) {
//        super(mapVector);
//        this.keyWriter = Preconditions.checkNotNull(keyWriter);
//        this.valueWriter = Preconditions.checkNotNull(valueWriter);
//    }
//
//    abstract boolean isNullAt(T in, int ordinal);
//
//    abstract MapData readMap(T in, int ordinal);
//
//    @Override
//    public void doWrite(T in, int ordinal) {
//        if (!isNullAt(in, ordinal)) {
//            ((MapVector) getValueVector()).startNewValue(getCount());
//
//            StructVector structVector =
//                    (StructVector) ((MapVector) getValueVector()).getDataVector();
//            MapData map = readMap(in, ordinal);
//            ArrayData keys = map.keyArray();
//            ArrayData values = map.valueArray();
//            for (int i = 0; i < map.size(); i++) {
//                structVector.setIndexDefined(keyWriter.getCount());
//                keyWriter.write(keys, i);
//                valueWriter.write(values, i);
//            }
//
//            ((MapVector) getValueVector()).endValue(getCount(), map.size());
//        }
//    }
//
//    // ------------------------------------------------------------------------------------------
//
//    /**
//     * {@link MapWriter} for {@link RowData} input.
//     */
//    public static final class MapWriterForRow extends MapWriter<RowData> {
//
//        private MapWriterForRow(
//                MapVector mapVector,
//                ArrowFieldWriter<ArrayData> keyWriter,
//                ArrowFieldWriter<ArrayData> valueWriter) {
//            super(mapVector, keyWriter, valueWriter);
//        }
//
//        @Override
//        boolean isNullAt(RowData in, int ordinal) {
//            return in.isNullAt(ordinal);
//        }
//
//        @Override
//        MapData readMap(RowData in, int ordinal) {
//            return in.getMap(ordinal);
//        }
//    }
//
//    /**
//     * {@link MapWriter} for {@link ArrayData} input.
//     */
//    public static final class MapWriterForArray extends MapWriter<ArrayData> {
//
//        private MapWriterForArray(
//                MapVector mapVector,
//                ArrowFieldWriter<ArrayData> keyWriter,
//                ArrowFieldWriter<ArrayData> valueWriter) {
//            super(mapVector, keyWriter, valueWriter);
//        }
//
//        @Override
//        boolean isNullAt(ArrayData in, int ordinal) {
//            return in.isNullAt(ordinal);
//        }
//
//        @Override
//        MapData readMap(ArrayData in, int ordinal) {
//            return in.getMap(ordinal);
//        }
//    }
//}
